<template>
    <div>
        <!-- 面包屑导航区 --> 
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>     
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>    
            <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
            <div id="main" style="width: 750px;height:400px;"></div></el-card></div>
</template>

<script>
// 导入echarts
import echarts from 'echarts'
import _ from 'lodash'

export default {
    data(){
        return{
            options: {
            title: {
                text: '用户来源'
            },
            tooltip: {
                trigger: 'axis',
                axisPointer: {
                type: 'cross',
                label: {
                    backgroundColor: '#E9EEF3'
                }
                }
            },
            grid: {
                left: '3%',
                right: '4%',
                bottom: '3%',
                containLabel: true
            },
            xAxis: [
                {
                boundaryGap: false
                }
            ],
            yAxis: [
                {
                type: 'value'
                }
            ]
        }

        }
    },
    created(){},
    // 执行mounted生命周期函数时，dom元素已经被初始化完毕
    async mounted(){
        // 初始化图标
        var myChart = echarts.init(document.getElementById('main'));

        const {data:res}=await this.$http.get('reports/type/1')
        if(res.meta.status!==200){
            return this.$message.error('获取数据失败！')
        }

        // 准备数据和配置项
        const result=_.merge(res.data,this.options)
        // 展示数据
        myChart.setOption(result)
    },
    methods:{}
}
</script>

<style lang="less" scoped>

</style>